using System;

using YesNt.Interpreter.Attributes;
using YesNt.Interpreter.Enums;
using YesNt.Interpreter.Utilities;

namespace YesNt.Interpreter.Statements
{
    internal class ConsoleStatements : StatementRuntimeInformation
    {
        [Statement("cwl", SearchMode.StartOfLine, SpaceAround.End, ConsoleColor.DarkGreen, Priority = Priority.VeryLow)]
        public void WriteLine(string args)
        {
            RuntimeInfo.WriteLine(args);
        }

        [Statement("cw", SearchMode.StartOfLine, SpaceAround.End, ConsoleColor.DarkGreen, Priority = Priority.VeryLow)]
        public void Write(string args)
        {
            RuntimeInfo.Write(args);
        }

        [Statement("%crl", SearchMode.Contains, SpaceAround.End, ConsoleColor.DarkGreen, KeepStatementInArgs = true, Priority = Priority.Highest)]
        public void ReadLine(string args)
        {
            args += " ";
            while (args.Contains("%crl "))
            {
                string input = Console.ReadLine();
                if (input is null)
                {
                    RuntimeInfo.Exit("Terminated by external process", true);
                    return;
                }
                args = args.ReplaceFirstOccurrence("%crl ", input.ToSaveString() + " ");
            }
            RuntimeInfo.CurrentLine = args.TrimEnd();
        }

        [Statement("%cr", SearchMode.Contains, SpaceAround.End, ConsoleColor.DarkGreen, KeepStatementInArgs = true, Priority = Priority.Highest)]
        public void ReadKey(string args)
        {
            args += " ";
            while (args.Contains("%cr "))
            {
                string input = ConsoleExtentions.ReadKey(RuntimeInfo).ToString();
                args = args.ReplaceFirstOccurrence("%cr ", input.ToSaveString() + " ");
            }
            RuntimeInfo.CurrentLine = args.TrimEnd();
        }

        [Statement("cls", SearchMode.Exact, SpaceAround.None, ConsoleColor.Magenta)]
        public void Clear(string args)
        {
            Console.Clear();
        }
    }
}